On the genus Neophyllaphis Takahashi, 1920 (Homoptera, Aphididae) with descriptions of two new species

INTRODUCTION Of this genus, originally described from Japan, but apparently widely spread in the tropical and temperate parts of the southern hemisphere, only seven species are known. However, since the four species on Podocarpus all seem to infest only one or two species of their host plant genus, many more Neophyllaphis may exist, for there are about 50 more species of Podocarpus that have to be searched for aphids. The genus Chileaphis Essig, 1953 from Chile differs from Neophyllaphis almost only by the apterae viviparae having compound eyes, but because compound eyes are also present in apterous oviparae of Neophyllaphis, I consider Chileaphis at most a subgenus of Neophyllaphis. Key to subgenera of Neophyllaphis Takahashi 1 (2) Cauda in viviparae with the knob round or elongate, not nearly as thick as the length of the second joint of the hind tarsi. Apterae viviparae only with triommatidia. Oviparae with pseudosensoria only on hind tibiae(?)..... ...............Neophyllaphis Takahashi 2 (1) Cauda in viviparae with an extremely thick knob, which is thicker than the length of the second joint of the hind tarsi. Apterae viviparae with multicorneal eyes besides the triommatidia. Oviparae with pseudosensoria on all tibiae .................Chileaphis Essig Subgenus Neophyllaphis Takahashi, 1920 Key to species A. Alate viviparous females. 1 (2) Cauda with the knob round, or wider than long, with 10 or more hairs. The part of IIIrd antennal segment opposite the rhinaria quite smooth. On Podo-